HI
Could Anyone please help? I require the PCM pin numbers for the 8 injectors on a 1994 5.0 mass air style F150 truck with an E40d auto trans. The truck has an EEC 4 PCM which is a 60 pin processor.
Also does anyone know what the firing order is for these 5.0 mass air trucks?
any help would be greatly appreciated!!!

 

#1 = 58, 2 = 59, 3 = 39, 4 = 35, 5 = 15, 6 = 12, 7 = 13, 8 = 14.

Here is the firing order:


The 1994 SFI wiring Diagram:
http://i54.photobucket.com/albums/g9...4ODdiagram.jpg

 

Hi,
Thanks Subford for your reply, I used your info and sucessfuly converted my 86 5.0 wiring to a 94 mass air set up. It wouldnot run smoothly yesterday ,as I had the injectors still running in grouped configuration.
Just another question for you, could you tell me which PCM pins are for the overdrive cancel switch (E40d). Are they pin 31 and 42. My wiring diagram only does up to 1992 model year Trucks, so Im not sure if this is correct. Finally do you know which PCM pin is for yhe 4x4 low switch imput?
Thanks again for your assistance, you saved me from hours of frustration, Cheers

F350idi
Australia

 

Overdrive cancel switch (E40d) = PCM pin # 41.
The 4x4 low switch does not have an input to the PCM.

Did you look at the wiring diagram I posted a link to in my post above?

If you need wiring diagrams just email me and tell me what you have and the system you want it for.

 

Hi subford,
Thanks again for your help regarding the overdrive switch PCM pins. I wired them in today and mounted a switch and indicator light. Tested it this afternoon and it works well. I clicked on to your wiring diagram to finish of the remainder of the wiring.
I was just wondering if your truck has this EFI set up? If so could you let me know where the small hose coming off the plasic Y piece (which is connected to dual thottle body) goes to. It appears to go the rocker cover breather, but im not sure.
Thanks again

F350 IDI

 

This hose in the in this link?
If so yes it goes to the rocker cover tube where you put the oil in.

http://i54.photobucket.com/albums/g9...995PCVhose.jpg
/

 

I second the rocker cover breather as the location for that hose to attach. The mass air engines have to meter all air going into the engine, including through the PCV system.

 

Hi ,
Thanks again for your info, I have routed the air inlet bypass hose to the rocker cover breather and the truck runs fine.
This EFI set up is very similar to our 91 to 01 falcon 5.0 v8 except for the inlet manifolds which I believe is similar to your late 80's early 90's 5.0 litre Mustangs.
Cheers
F350idi